Improvement in photographic-printing frames



G; F. E, PEABSALL. Photographic Printing-Frame.

No. 208,536. Patented Oct. 1,1878.

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N. PETERS, PHOTO-L|THOGRAFHER, WASHINGTON. 0 CV UNITED STATES PATENTQFFIOE.

G. FRANK E. PEARSALL, OF BROOKLYN, ASSIGNOR TO E. AND H. T. ANTHONY &00., OF NEW YORK, N. Y.

IMPROVEMENT IN PHOTOG RAPHlC-PRINTING FRAMES.

Specification forming part of Letters Patent No. 208,536, dated October1, 1878; application filed January 21, 1878.

To all whom it may concern:

Be it known that I, G. FRANK E. PEARSALL, of Brooklyn, in the county ofKings and State of New York, have invented an Improvement inPhotographic-Printin g Frames, of which the following is aspecification:

Photographs have been printed as vignettes by intercepting the lightaround the border of the picture, and to accomplish this object a septumwith an opening has been used in connection with tissuepaper; butdifficulty has arisen in properly placing and holding the septum so thatthe opening will conform to the negative.

Various devices have been made for vignetting pictures, but they havebeen often complicated and difficult to make use of, as well asexpensive.

I make use of an ordinary printing-frame and an adjustable blendingattachment consistof a frame that supports the septum or aperture cardat the proper distance from the negative and a binding-frame that clampsthe septum in the position required, and also carries a sheet oftranslucent material, such as tissue-paper, to lessen the intensity 'ofthe light. By this construction I am enabled to place the aperture-cardin the proper position in relation to the negative, and to hold the samefirmly while any number of pictures are printed from the negative, andbut few septums or aperture cards'are required, because the card can bemoved and the position of the aperture changed as required.

In the drawing, Figure l is a vertical section of the printingframecomplete, and Fig. 2 is a plan with the clamping-frame thrown back.

The frame a is provided with the rabbeted opening for receiving theglass negative I), and the two-part back 0 is hinged at (I, and providedwith the springs e, that serve to press the sensitized paper against thenegative.

This portion of the printing-frame is of ordinary construction, and maybe varied to suit the pictures or negatives. The frame f is preferablythin and rather wider than the frame a, and it is connected to the framea by hooks g, so that the vignetting apparatus may be connected to orremoved from the frame a, as occasion may require.

The clamping-frame his hinged to the frame fat 1 and provided with ahook at k, and upon this frame h there is a sheet of tissue-paper orsimilar translucent material at 2.

The septum or aperture card 1 is made with one or more openings of thedesired size and shape, preferably with zigzag edges, and this septum isplaced upon the frame f with the opening in the proper positionrelatively to the picture. Then the frame it is closed down and hooked,so as to hold the septum in place while the printing is being done inthe usual manner.

From the foregoing the advantages of this improvement will be apparentto those skilled in the art, and l remark that this vi gnettingframe maybe changed from one printin g-frame to another.

1 am aware that the ordinary printing-frame has been provided with. avignetting attachment consisting of a frame with an opening attached byslotted links, so as to be movable, to place the opening at the properposition for the picture. In my improvement the clampin g-frame is in afixed position and is very simple in construction, and the septum-cardonly is movable between the frame f h.

I claim as my invention- In combination with a photograph-printingframe, the frames f 71, hinged together, the tissue-paper or similarmaterial in the frame 11, and the aperture-card I, that is placed in position and clamped between the frames f h, substantially as set forth.

Signed by me this 17th day of January, A. D. 1878.

G. FRANK E. PEARSALL.

\Vitnesses:

Gno. T. PINOKNEY, OHAs. H. SMITH.

